Keyboard



FIG. 1 is a perspective view of a first embodiment for the inventivedesign of a keyboard;

FIG. 2 is a front view of the design of FIG. 1;

FIG. 3 is a rear view of the design of FIG. 1;

FIG. 4 is a left-side view of the design of FIG. 1;

FIG. 5 is a right-side view of the design of FIG. 1;

FIG. 6 is a top plan view of the design of FIG. 1; and,

FIG. 7 is a bottom plan view of the design of FIG. 1.

The broken lines are for illustrative purposes only and form no part ofthe design.

The ornamental design for a keyboard, as shown and described.